[FFmpeg-user] ffmpeg -ss start-time issue

[richard heade]

I have tried a number of variations on generating timestamps on the
video, like

ffmpeg -i HiDef.mpg -vf
drawtext="fontfile=/usr/share/fonts/truetype/DejaVuSans.ttf: \
                                text='\%T %D': x=10: y=10: fontsize=24:
fontcolor=white" \
                                                        -vcodec copy
-acodec copy xgen_white.mp4

(I also tried "fontcolor=black")

and

ffmpeg -i HiDef.mpg -vf
"drawtext=fontsize=18:fontfile=/usr/share/fonts/truetype/DejaVuSansMono-Bold.ttf:
\
    box=1:text='%T %D':x=(w-text_w-5):y=(h-text_h-5)" -vcodec copy
-acodec copy timestamp.avi

and I haven't been able to detect any timestamps on the video.


On 03/27/2014 07:31 AM, Tom Horsley wrote:
> On Thu, 27 Mar 2014 07:07:31 -0700
> richard heade wrote:
>
>> If
>> they are incompatible is there another way, compatible with ffmpeg, to
>> get the frame count, elapsed time, and frame type from a video?
> I've never found any two video editors that agreed on timestamps :-(.
>
> I use the big hammer of generating a small version of the video
> with the timestamps printed on each frame by ffmpeg so I'm
> sure the same version of ffmpeg will believe the same timestamp:
>
> http://home.comcast.net/~tomhorsley/game/ffmpeg.html#generatetimestamps
>
> I can then play that video and pause to pick timestamps off
> the image.
>